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发布时间:2023-11-03 05:05:08

[单项选择]When vessel enters thick fog, she should sound()every two minutes in accordance with the rules.
A. one short blast
B. one prolonged blast
C. two short blasts

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[单项选择]When your vessel enters thick fog,she should sound()every two minutes in accordance with these Rules.
A. one short blast
B. one prolonged blast
C. two short blasts
D. three short blasts
[单项选择]In most cases,when a large merchant vessel enters shallow water at high speed the().
A. maneuverability will increase
B. speed will increase
C. bow will squat farther than the stern
D. vessel will rise slightly,on a level plane
[单项选择]The ship should reduce speed in the thick fog because of().
A. the poor visibility
B. the fog signals
C. the fast speed
D. the good sight
[单项选择]When navigating in thick fog with the radar on,you should().
A. station the look-out in the wheelhouse to keep a continuous watch on the radar
B. secure the sounding of fog signals until a vessel closes within five miles
C. station a look-out as low down and far forward as possible
D. keep the radar on the shortest available range for early detection of approaching vessels
[单项选择]You are underway in thick fog.You have not determined if risk of collision exists.Which statement is true?()
A. Your speed must be reduced to bare steerage ways
B. A look-out is not required if the radar is on
C. The radar should always be kept on a short-range scale
D. Fog signals are only required when a vessel is detected by radar
[单项选择]You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?().
A. Your speed must be reduced to bare steerageway
B. A look-out is not required if the radar is on
C. Fog signals are only required when a vessel is detected by radar
D. The radar should always be kept on a short-range scale
[单项选择]While underway in thick fog you are on watch and hear the cry“man overboard”.Which type of maneuver should you make().
A. Figure eight turn
B. Round turn
C. Racetrack turn
D. Williamson turn
[单项选择]Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?()
A. Give them brandy
B. Keep them in motion
C. Immerse them in a warm bath (105°F,40°C)
D. Cover them with an electric blanket set for maximum temperature
[单项选择]Which IPsec security protocol should be used when confidentiality is required?()
A. PSK
B. AH
C. MD5
D. ESP
[单项选择]What additional precautions should be taken when making temporary repairs to a ship that is operating when hydrogen sulfide is present?()
A. Seal off all tank and compartment ventilation
B. Remove all bulk materials from the P-tanks
C. Provide respiratory protection and monitoring
D. All of the above
[单项选择]Hygroscopic cargoes should be ventilated when().
A. going from a warm to a cold
B. the dew point of the outside air is greater than the dew point of the air in the hold
C. the dew point of the air in the hold is very low
D. the outside dew point is 16°C and the cargo temperature is 12°C
[单项选择]Which operation should be done when launching an inflatable liferaft by hand?()
A. Open the liferaft casing
B. Turn the valve on the CO2 cylinder to start inflation
C. Make sure the operating cord is secured to the vessel before throwing it over the side
D. After inflation,detach operating cord from liferaft
[单项选择]Which channel and mode should be used when initiating a distress alert transmission?()
A. Channel 6 DSC
B. Channel 6 Radiotelephony
C. Channel 13 Radiotelephony and channel 16 DSC
D. Channel 70 DSC
[单项选择]Which precaution should be taken when testing a line throwing gun?()
A. Never remove the line from the rocket
B. Fire it at an angle of approximately 90 degrees to the horizon
C. Wear asbestos gloves
D. All of the above

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